Study on thermal stability and degradation mechanism of novel chitin inhibitor-asymmetric acylurea

Aim To investigate the thermal stability and the degradation mechanism of the novel chitin inhibitors of asymmetric acylurea. Methods The quantity of pyrolyzates were analysed and F-t curves were drawn from pyrolysis gas chromatography (PGC) data. The pyrolyzates were identified by on-line pyrolysis gas chromatography/ mass spectrometry (PGC/MS). Results and Conclusion The thermal resistance of novel chitin inhibitors of asymmetric acylurea are better than the comparing inhibitor-SuNiao No. 1. The C-N bond of acylurea fractures first when it is heated.